How to move from entry to a BACK executable that runs in parallel to a VI

I use the system Exec to call an executable BACK that then runs in the background in parallel to a VI. During his execution, the executable is controlled by commands that are typed to her, and I need to be able to move these controls to the executable file for the duration of the execution of my VI. (This is different from unique parameters that I can pass the command line before you run the program.)

Other discussions on this forum seem to indicate passing entry and exit back-and-forth with executables called via the command Exec System using a temporary file which is regularly queryied by VI and the executable file. In my case, it is not feasible as I need to be able to do this very quickly and, at times, often.

Does anyone have a solution to directly deliver my orders (text) of the executable running in the background of BACK? I found an approach posted by smercurio_fc to: http://forums.ni.com/t5/LabVIEW/URGENT-How-we-read-stdout-directly/td-p/801983 , it looks promising but I do not know if it would solve my problem, because I couldn't see the solution (cannot open the examples as they are written for LabView 8, and I am running Version 7.1.).

Thanks in advance for all tracks.

In libraries OpenG is a library that allows you to open a command line as with SystemExec utility and gets its standard input and output to the stream that can be read and written as. It is still Alpha State, sort of since there are some other tests made on different versions of Windows, but it works for me so far.

Check out this thread.

Tags: NI Software

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